Threaded screw-in stud made of stainless steel for use as an electrical connector for functional and protective bonding and grounding applications. For a maximum permanent current of 40 A and a maximum contact resistance of 5 mΩ. The stud allows fast and easy single-operator installation with battery driven tools. There is no through penetration and rework required. Minimum base material thickness 6 mm. The system holds the relevant electrical, offshore and onshore approvals and it is suited for the use in highly corrosive environment. Supplied in a box containing: 100 x S-BT-ER studs, 200 x nuts, 100 x lock washers, 1 x stepped drill bit TS-BT 5.5-74 S for carbon steel, 1 x check gauge and IFU (instructions for use)-manual.